Requires

Double Vision must be on the battlefield. Venser, Shaper Savant must be in hand. Panharmonicon must be on the battlefield. Walk the Aeons must be in hand. You haven't cast an instant or sorcery spell this turn. Mana needed: each turn

Steps

1. Cast Walk the Aeons by paying .
2. Double Vision triggers, copying Walk the Aeons.
3. Holding priority, cast Venser by paying .
4. When Venser enters the battlefield, it triggers twice, returning itself and the original Walk the Aeons to your hand from the battlefield and stack respectively.
5. Resolve the copy of Walk the Aeons, causing you to take an extra turn after this one.
6. Repeat each turn.

Results